Patrick Kennealy - Profile on Academia.edu (original) (raw)
Papers by Patrick Kennealy
A growing body of research suggests that high quality dual role relationships between community c... more A growing body of research suggests that high quality dual role relationships between community corrections officers and offenders reduce risk of recidivism. This study assesses whether this finding generalizes from offenders with mental illness to their relatively healthy counterparts. More importantly, this study tests the possibility that this finding is spurious, reflecting the influence of pre-existing offender characteristics more than a promising principle of practice. In this study of 109 parolees without mental illness, the authors found that (a) firm, fair, and caring relationships protect against rearrest, and (b) do so even after accounting for offenders' pre-existing personality traits and risk for recidivism. These findings are consistent with the theoretical notion that good dual role relationships are an essential element of core correctional practice, even (or particularly) for difficult or high risk offenders.
Psychopathic personality disorder.
Impulsive aggression is characterized by an inability to regulate affect as well as aggressive im... more Impulsive aggression is characterized by an inability to regulate affect as well as aggressive impulses, and is highly comorbid with other mental disorders including depression, suicidal behavior, and substance abuse. In an effort to elucidate the neurobiological underpinnings of impulsive aggression and to help account for its connections with these other disorders, this paper reviews relevant biochemical, brain imaging, and genetic studies. The review suggests that dysfunctional interactions between serotonin and dopamine systems in the prefrontal cortex may be an important mechanism underlying the link between impulsive aggression and its comorbid disorders. Specifically, serotonin hypofunction may represent a biochemical trait that predisposes individuals to impulsive aggression, with dopamine hyperfunction contributing in an additive fashion to the serotonergic deficit. The current paper proposes a modified diathesis-stress model of impulsive aggression in which the underlying biological diathesis may be deficient serotonergic function in the ventral prefrontal cortex. This underlying disposition can be manifested behaviorally as impulsive aggression towards oneself and others, and as depression under precipitating life stressors. Substance abuse associated with impulsive aggression is understood in the context of dopamine dysregulation resulting from serotonergic deficiency. Also discussed are future research directions in the neurobiology of impulsive aggression and its comorbid disorders.
The validity of the Psychopathy Checklist-Revised (PCL-R) has been examined extensively in men, b... more The validity of the Psychopathy Checklist-Revised (PCL-R) has been examined extensively in men, but its validity for women remains understudied. Specifically, the correlates of the general construct of psychopathy and its components as assessed by PCL-R total, factor, and facet scores have yet to be examined in depth. Based on previous research conducted with male offenders, a large female inmate sample was used to examine the patterns of relations between total, factor, and facet scores on the PCL-R and various criterion variables. These variables include ratings of psychopathy based on Cleckley's criteria, symptoms of antisocial personality disorder, and measures of substance use and abuse, criminal behavior, institutional misconduct, interpersonal aggression, normal range personality, intellectual functioning, and social background variables. Results were highly consistent with past findings in male samples and provide further evidence for the construct validity of the PCL-R two-factor and four-facet models across genders.
A growing body of research suggests that high quality dual role relationships between community c... more A growing body of research suggests that high quality dual role relationships between community corrections officers and offenders reduce risk of recidivism. This study assesses whether this finding generalizes from offenders with mental illness to their relatively healthy counterparts. More importantly, this study tests the possibility that this finding is spurious, reflecting the influence of pre-existing offender characteristics more than a promising principle of practice. In this study of 109 parolees without mental illness, the authors found that (a) firm, fair, and caring relationships protect against rearrest, and (b) do so even after accounting for offenders' pre-existing personality traits and risk for recidivism. These findings are consistent with the theoretical notion that good dual role relationships are an essential element of core correctional practice, even (or particularly) for difficult or high risk offenders.
Psychopathic personality disorder.
Impulsive aggression is characterized by an inability to regulate affect as well as aggressive im... more Impulsive aggression is characterized by an inability to regulate affect as well as aggressive impulses, and is highly comorbid with other mental disorders including depression, suicidal behavior, and substance abuse. In an effort to elucidate the neurobiological underpinnings of impulsive aggression and to help account for its connections with these other disorders, this paper reviews relevant biochemical, brain imaging, and genetic studies. The review suggests that dysfunctional interactions between serotonin and dopamine systems in the prefrontal cortex may be an important mechanism underlying the link between impulsive aggression and its comorbid disorders. Specifically, serotonin hypofunction may represent a biochemical trait that predisposes individuals to impulsive aggression, with dopamine hyperfunction contributing in an additive fashion to the serotonergic deficit. The current paper proposes a modified diathesis-stress model of impulsive aggression in which the underlying biological diathesis may be deficient serotonergic function in the ventral prefrontal cortex. This underlying disposition can be manifested behaviorally as impulsive aggression towards oneself and others, and as depression under precipitating life stressors. Substance abuse associated with impulsive aggression is understood in the context of dopamine dysregulation resulting from serotonergic deficiency. Also discussed are future research directions in the neurobiology of impulsive aggression and its comorbid disorders.
The validity of the Psychopathy Checklist-Revised (PCL-R) has been examined extensively in men, b... more The validity of the Psychopathy Checklist-Revised (PCL-R) has been examined extensively in men, but its validity for women remains understudied. Specifically, the correlates of the general construct of psychopathy and its components as assessed by PCL-R total, factor, and facet scores have yet to be examined in depth. Based on previous research conducted with male offenders, a large female inmate sample was used to examine the patterns of relations between total, factor, and facet scores on the PCL-R and various criterion variables. These variables include ratings of psychopathy based on Cleckley's criteria, symptoms of antisocial personality disorder, and measures of substance use and abuse, criminal behavior, institutional misconduct, interpersonal aggression, normal range personality, intellectual functioning, and social background variables. Results were highly consistent with past findings in male samples and provide further evidence for the construct validity of the PCL-R two-factor and four-facet models across genders.